Method and device realizing heterotrophic coupling anaerobic ammonia oxidation advanced nitrogen removal in AOA-SBBR

A technology of anaerobic ammonium oxidation and deep denitrification, which is applied in the field of heterotrophic coupled anammox deep denitrification, can solve the problems of insufficient carbon source of urban sewage, limited application, and difficulty in the treatment and disposal of excess sludge, and achieve the realization of sewage Mud reduction treatment, cost saving, cost saving effect

Inactive Publication Date: 2019-06-21
BEIJING UNIV OF TECH
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Problems solved by technology

However, the lack of carbon sources in urban sewage limits the application of traditional biological denitrification processes.
At the same time, sewage treatment plants will inevitably produce a large amount of excess sludge, and the treatment and disposal of excess sludge is also a major problem

Method used

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  • Method and device realizing heterotrophic coupling anaerobic ammonia oxidation advanced nitrogen removal in AOA-SBBR
  • Method and device realizing heterotrophic coupling anaerobic ammonia oxidation advanced nitrogen removal in AOA-SBBR
  • Method and device realizing heterotrophic coupling anaerobic ammonia oxidation advanced nitrogen removal in AOA-SBBR

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Embodiment Construction

[0020] The patent application is further described in conjunction with accompanying drawings and examples: as figure 1 As shown, the present invention includes an excess sludge fermentation tank, a sludge fermentation mixture storage tank, a sewage water tank, and a sequencing batch biofilm reactor SBBR. The effective volumes of the four devices are 5L, 3L, 30L, and 12L respectively, in which the excess sludge fermentation tank, sludge fermentation mixture storage tank and sequencing batch biofilm reactor SBBR are made of plexiglass.

[0021] The device comprises that the excess sludge is pumped into the excess sludge fermentation tank (2) through the first pump peristaltic pump (1), and the first agitator (3) and a temperature control device (4) are installed in the excess sludge fermentation tank (2). , the first pH controller (5); the excess sludge fermentation tank (2) is connected with the fermentation mixture storage tank (9), and the fermentation mixture storage tank (9...

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Abstract

The invention relates to a method and device realizing heterotrophic coupling anaerobic ammonia oxidation advanced nitrogen removal in AOA-SBBR, and belongs to the field of urban sewage treatment andsludge biochemical treatment. The method includes the following steps: allowing urban sewage and sludge leavening mixture to simultaneously enter into an AOA-SBBR reactor; converting organic matter indomestic sewage and sludge leavening in an anaerobic zone into PHA and storing inside; converting ammonia nitrogen in an aerobic zone into nitrite nitrogen under the action of partial nitrification;carrying out anaerobic ammonia oxidation with residual ammonia nitrogen and nitrite nitrogen in an anoxic zone by utilizing anaerobic ammonium oxidation bacteria adhered onto a biological membrane, and carrying out denitrification at the same time to reduce residual nitrite nitrogen and nitrate nitrogen generated from anaerobic ammonia oxidation into nitrogen, so as to complete advanced nitrogen removal. According to the invention, the AOA-SBBR operation manner is adopted to realize mixed treatment of residual sludge leavening and domestic sewage to achieve advanced nitrogen removal and reduction treatment of sludge at the same time.

Description

technical field [0001] The invention relates to a method and a device for realizing deep denitrification by heterotrophic coupling anaerobic ammonium oxidation in an AOA-SBBR, and belongs to the field of urban sewage treatment and sludge biochemical treatment. This process is suitable for strengthening the deep denitrification of low C / N urban domestic sewage. Background technique [0002] Biological denitrification technology is widely used in urban domestic sewage treatment plants. However, the lack of carbon sources in urban sewage limits the application of traditional biological denitrification processes. At the same time, sewage treatment plants will inevitably produce a large amount of excess sludge, and the treatment and disposal of excess sludge is also a major problem. Residual sludge is the material produced during the biological treatment of sewage, and its main organic components are protein, carbohydrates and fat. The anaerobic fermentation technology of exce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/34C02F11/02C02F101/16
Inventor 彭永臻刘瑾瑾邱圣杰夏杨张琼
Owner BEIJING UNIV OF TECH
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